Goldenback Trigger

Xanthichthys caeruleolineatus


(0 Reviews)

Goldenback Trigger
The Goldenback Triggerfish, distinguished by its golden-yellow back and bold black markings, adds vibrant color and character to saltwater aquariums. Known for its robust nature, this species requires a spacious tank with plenty of hiding spots to thrive in captivity.

Goldenback Trigger

Xanthichthys caeruleolineatus


(0 Reviews)

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Goldenback Trigger Care Facts

Care Level: Moderate
Temperament: Aggressive
Diet: Carnivore
Reef Safe: No
Minimum Tank Size: 200 gallons
Max Size: 14 inches

The Goldenback Triggerfish (Xanthichthys caeruleolineatus) with its unique yellow-brown and white coloration and blue stripes is a true gem for any saltwater aquarium enthusiast. Care for the Goldenback Triggerfish is relatively easy, requiring a minimum tank size of 200 gallons to accommodate its needs as it can grow to 14 inches in length. However, be aware of its highly aggressive nature, which calls for careful consideration when choosing tankmates as it will eat most invertebrates and small fish. While not reef safe, this carnivorous beauty will thrive on a diverse diet of marine-based foods such as krill,clams,shrimp, and other frozen meaty marine diets.


The Goldenback Triggerfish, scientifically known as Xanthichthys caeruleolineatus, is a captivating marine species sought after by enthusiasts for its striking appearance and intriguing behavior. Native to the Indo-Pacific region, these fish thrive in saltwater aquariums when provided with proper care and habitat conditions.

Habitat and Natural Environment of the Goldenback Triggerfish

In their natural habitat, Goldenback Triggerfish inhabit tropical coral reefs and rocky shores, typically found at depths ranging from 10 to 80 meters. They seek shelter and forage for food among abundant coral growth and rocky formations.

Reef Compatibility of the Goldenback Triggerfish

Caution is advised when keeping Goldenback Triggerfish in a reef aquarium due to their curious nature and tendency to rearrange substrates, which may threaten certain corals and invertebrates. Providing plenty of hiding spots and sturdy corals can mitigate potential issues.

Size and Lifespan of the Goldenback Triggerfish

Goldenback Triggerfish can grow up to 14 inches long in captivity and live for up to 10 years or more with proper care, making them a long-term commitment for marine enthusiasts.

Dietary Requirements of the Goldenback Triggerfish

Goldenback Triggerfish are omnivores and should be offered a varied diet consisting of high-quality pellets, frozen foods such as mysis shrimp and brine shrimp, as well as occasional offerings of marine algae and seaweed to ensure optimal health and coloration.

Aquaculture Availability of the Goldenback Triggerfish

While occasionally available through aquaculture, wild-caught specimens are more common in the aquarium trade. Efforts to promote aquaculture and captive breeding are underway to reduce reliance on wild-caught specimens.

Compatibility of the Goldenback Triggerfish with Tankmates

Goldenback Triggerfish can be territorial and aggressive towards smaller tank mates but can coexist with larger, semi-aggressive fish species such as tangs, wrasses, and larger angelfish. Careful consideration should be given when selecting tank mates to prevent aggression and territorial disputes.

Sexual Dimorphism of the Goldenback Triggerfish

Sexual dimorphism in Goldenback Triggerfish is not readily apparent, as males and females exhibit similar coloration and physical characteristics.

Juvenile to Adult Coloration Changes in the Goldenback Triggerfish

Juvenile Goldenback Triggerfish typically display vibrant yellow and black coloration with intricate patterns along their body. Their coloration may intensify as they mature, and some individuals may develop additional markings or spots.

Temperament of the Goldenback Triggerfish

Goldenback Triggerfish are known for their bold and curious nature, often exploring every nook and cranny of the aquarium. While they can be territorial and aggressive towards smaller tank mates, they can also exhibit playful behavior and interact with their environment.

Tank Requirements for the Goldenback Triggerfish

Minimum Aquarium Size: A minimum tank size of 200 gallons is recommended to provide ample space for these active swimmers to roam and explore, along with ample hiding spots, live rock formations, and open swimming areas to mimic their natural habitat.
Water Conditions:

  • pH: 8.1-8.4
  • Salinity: 1.023-1.025
  • Water Temperature: 75-82°F
  • Water Flow: Moderate to strong flow to simulate natural reef conditions.

Why Buy from Saltwaterfish.com

Saltwaterfish.com is renowned for its commitment to quality and sustainability in the aquarium trade, offering responsibly sourced marine life, including Goldenback Triggerfish. With a wide selection of marine species, expert advice, and excellent customer service, customers can trust they are purchasing healthy specimens that are ethically sourced.

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